Looking out into the Milky Way, it's possible to see all sorts of strange cosmic structures — tentacle-like spiraling arms of ...

This week’s small-telescope target is globular cluster NGC 2808 in the southern constellation Carina the Keel. It shines at magnitude 6.2 and has a diameter of 13.8′. That means it covers 20 ...

Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. Publications of the Astronomical Society... Publications of the Astronomical Society of the Pacific ...